| 1 | They generally puffed up the infected plants and burn them. | |
| 2 | THE BOTTOM LINE A single person can carry multiple cold strains at one time. | |
| 3 | That is because the formula is changed depending on the previous year' s strain of the influenza virus. | |
| 4 | The pathogen was separated from diseased cucumber plant of Wuqing region and cultivated in PDA medium. | |
| 5 | It has identified the virus strain and is now developing a seed strain to distribute to manufacturers. |